Alpinestars Nucleon KR-3 CE Level 2 Certified Back Protector - Lightweight Adjustable Motorcycle Spine Protection for Racing & Street Riding - Perfect for Track Days, Commuting & Adventure Touring

The Nucleon range of road protection features a superb anatomical fit and comfort. Constructed with innovative protector plates which are lightweight and feature a high performance polymeric blend for protection. Featuring new, modular rib protectors for strategic protection in a vulnerable area, the Nucleon KR-3 Protector offers excellent performance under an outer leather or textile garment.

Developed in three waist-to-shoulder dimensions in order to cover all body sizes

Lattice structure back shell plate is constructed from a high-performance polymeric material blend for optimized flexibility and excellent weight-saving properties combined with soft viscoelastic pu (polyurethane) foam compound construction

Single injected lattice structure shell with an ergonomic design to absorb impacts and allow maximum breathability and airflow

Nucleon pu foam on the central spine area for additional impact absorption performance

Additional convex design on the central hard shell provides the highest level of protection for the spinal area